Limenitis archippus, the Viceroy, can be found in numerous states in all regions of the country, not including Alaska or Hawaii.
Favorite nectar plants include: Asclepias, Buddleja, Cephalanthus, and Cirsium
USDA Growing Zones for these plants include: 3,4,5,6,7,8,9,10,11

Host plants:
Populus
Salix

PD image courtesy of
Dr. Thomas G. Barnes, USFWS